1. Updated header to use /usr/bin/env to look for python instead of
specifying python2.6.
2. Updated mhiWrap to use DESTDIR at the replacement string for the
provided dir. Previous value referred to /home/pj.
3. Updated mkMhilinks in several ways
3a. Uses sed to replace DESTDIR with $destdir in mhiWrap
3b. Copies mhi.py and configobj.py to $destdir
3c. Symlink mhi to mhi.py